CN103201643A - High voltage testing device - Google Patents
High voltage testing device Download PDFInfo
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- CN103201643A CN103201643A CN2011800528394A CN201180052839A CN103201643A CN 103201643 A CN103201643 A CN 103201643A CN 2011800528394 A CN2011800528394 A CN 2011800528394A CN 201180052839 A CN201180052839 A CN 201180052839A CN 103201643 A CN103201643 A CN 103201643A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
- G01R31/1227—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials
- G01R31/1263—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation
- G01R31/1272—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing of components, parts or materials of solid or fluid materials, e.g. insulation films, bulk material; of semiconductors or LV electronic components or parts; of cable, line or wire insulation of cable, line or wire insulation, e.g. using partial discharge measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
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- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Testing Relating To Insulation (AREA)
Abstract
The purpose of the present invention is to test the whole cable with a simple operation without destroying a capacitor, even in the case of testing a coaxial cable having a built-in capacitor. Disclosed is a high voltage testing device, which has, as a subject to be tested, a coaxial cable (11) configured of a core line (11a) and an insulated shield conductor (11b), and performs a test relating to an electrically insulated state by applying a high voltage. The testing device is provided with: a core line short-circuiting section (P1), which has a high voltage testing jig (20) that respectively connects two output electrodes (31, 32) for output of a testing machine that outputs a high voltage with the center conductor and the shield conductor of the coaxial cable to be inspected, and which has the cable connecting section electrically short-circuit between one end and the other end of the core line (11a) of the coaxial cable, said one end and the other end being in the length direction of the core line; and a shield line short-circuiting section (P2), which electrically short-circuits between one end and the other end of the shield conductor (11b) of the coaxial cable, said one end and the other end being in the length direction of the shield conductor.
Description
Technical field
The present invention relates to a kind of high voltage test device, it as checking object, applies high voltage with concentric cable between the center conductor (heart yearn) of above-mentioned concentric cable and shielded conductor, carry out the test of relevant electric insulating state.
Background technology
For example, with under the input of the wireless device of radio, TV etc. and the situation that antenna is connected, use concentric cable usually.This class concentric cable has the certain center conductor of thickness and shielded conductor, and this shielded conductor is configured to tubular, surround above-mentioned center conductor around, and between itself and center conductor, clip predetermined insulating material.Under the input of vehicle-mounted radio receiver etc. and situation that antenna etc. is connected, also use such concentric cable.
In addition, as described in patent documentation 1, the situation that is inserted with capacitor in the part of the center conductor of concentric cable is arranged also.
On the other hand, when the user is used for various uses with the electric wire of this concentric cable and so on, for security and the quality that guarantees electric wire, need to implement electric checking.Particularly, need the center conductor of concentric cable and the insulativity between the shielded conductor have been guaranteed by the user.And, need measure insulation resistance by the user applies direct current between center conductor and shielded conductor high voltage (for example 1000V), perhaps apply with the alternating voltage (for example amplitude 1000V) of the same equifrequent of commercial ac power source (for example 50Hz) and confirm that it is withstand voltage no problem.
In addition, for example in patent documentation 2, the insulation monitor of ageing state of the electrically insulating material of the electric wire that is used for monitoring switchboard is disclosed.That is, it discloses the antenna that a kind of use is disposed in the switchboard and has detected and monitored the partial discharge that causes along with insulation ag(e)ing and the electromagnetic technology of launching.
Technical literature formerly
Patent documentation 1: TOHKEMY 2001-202836 communique
Patent documentation 2: TOHKEMY 2005-265684 communique
Summary of the invention
Invent problem to be solved
For example, under the situation of the insulation resistance of measuring common concentric cable, can be connected with center conductor and the shielded conductor of the concentric cable that checks object respectively by two electrodes with Insulation Resistance Tester, and these electrodes are applied predetermined voltage, thereby test easily.
But, be inserted with under the situation that the concentric cable of capacitor tests in the part to aforesaid center conductor, then there is the possibility that variety of issue takes place.Namely, because the DC current between an end of the length direction of concentric cable and the other end is isolated by capacitor, so, when only two electrodes of Insulation Resistance Tester being connected to the center conductor of an end of concentric cable and shielded conductor, can only in the scope of an end of capacitor, test the end from concentric cable.Therefore, just need be after the test of an end that finishes concentric cable, the center conductor and the shielded conductor that two electrodes of Insulation Resistance Tester are switched the other end that is connected to this concentric cable are also tested again.
In addition, when implementing megger test and voltage-withstand test etc., apply the high voltage about 1000V usually.The withstand voltage of capacitor itself that is built in the concentric cable is to the maximum about 50V usually.Therefore, when when test during operating personnel's connection error, when perhaps the insulating property of concentric cable itself have problems, the capacitor of concentric cable also can appear because having applied the breakdown possibility of excessive voltage.
The present invention makes in view of above-mentioned present situation, its purpose is to provide a kind of high voltage test device, even this device under the situation that the concentric cable that is built-in with capacitor is tested, also can be tested whole cable by simple operations under can not the state of breakdown potential container.
Be used for solving the means of problem
In order to achieve the above object, high voltage test device of the present invention has the feature of following (1)～(4).
(1) a kind of high voltage test device, this high voltage test device serves as to check object with the concentric cable with center conductor and shielded conductor, by between the center conductor of above-mentioned concentric cable and shielded conductor, applying high voltage, carry out the test of relevant electric insulation state, above-mentioned shielded conductor surround above-mentioned center conductor around, between itself and center conductor, clip predetermined insulating material, wherein
Above-mentioned high voltage test device has cable connecting part, and this cable connecting part is connected two output electrodes of the tester of output HIGH voltage respectively with center conductor and shielded conductor as the above-mentioned concentric cable that checks object,
Above-mentioned cable connecting part also has: with the heart yearn short circuit portion of electric short circuit between an end of the length direction of the center conductor of above-mentioned concentric cable and the other end; And with the shielding line short circuit portion of electric short circuit between an end of the length direction of the shielded conductor of above-mentioned concentric cable and the other end.
(2) according to above-mentioned (1) described high voltage test device, wherein, above-mentioned high voltage test device also has time constant circuit, this time constant circuit is connected between the input of the output of above-mentioned tester and above-mentioned cable connecting part, and comprises at least one resistor and at least one capacitor.
(3) according to above-mentioned (2) described high voltage test device, wherein, above-mentioned time constant circuit has the surge that absorbs abnormally high-voltage and eliminates circuit.
(4) according to above-mentioned (1) described high voltage test device, wherein, above-mentioned cable connecting part has plural coaxial connector, and this coaxial connector is used for respectively being connected with being arranged at as an end of the length direction of the above-mentioned concentric cable that checks object and two connectors of the other end.
According to the high voltage test device of the structure of above-mentioned (1), even in as the above-mentioned concentric cable that checks object, be built-in with under the situation of capacitor, also can prevent between the terminal of above-mentioned capacitor, applying high voltage.And test is applied to the two ends of above-mentioned concentric cable simultaneously by above-mentioned heart yearn short circuit portion with voltage.Therefore, even test without separating into twice, but also can test the integral body of above-mentioned concentric cable by test once.In addition, even under the situation long as the length of the above-mentioned concentric cable that checks object, also can suppress to put on the increase of the voltage between the terminal of above-mentioned capacitor.
According to the high voltage test device of the structure of above-mentioned (2), can relax by above-mentioned tester and be applied to high-tension pace of change as the above-mentioned concentric cable that checks object.Relax the influence of the inductance composition of above-mentioned concentric cable inside thus.Therefore, even under the situation long as the length of the above-mentioned concentric cable that checks object, also can suppress to put on the increase of the voltage between the terminal of above-mentioned capacitor.
According to the high voltage test device of the structure of above-mentioned (3), former because of certain thereby temporarily applied under the situation of abnormally high-voltage, above-mentioned surge is eliminated circuit this abnormally high-voltage is absorbed.Therefore, can suppress to put on the increase of the voltage between the terminal of above-mentioned capacitor.
According to the high voltage test device of the structure of above-mentioned (4), as long as will be installed to two coaxial connectors of above-mentioned cable connecting part as the two ends of the above-mentioned concentric cable that checks object, just can test safely.That is, can prevent from causing above-mentioned concentric cable interior capacitor to be applied in excessive voltage condition because of maloperation etc.
More than, the present invention has been carried out brief description.And, read over following illustrated embodiment by the reference accompanying drawing, details of the present invention will be clearer and more definite.
Description of drawings
The wiring schematic diagram of the connection status when Fig. 1 is to use the high voltage test device of embodiment that antenna is tested with the electric wire wire harness.
Fig. 2 is the circuit diagram of the equivalent electrical circuit of circuit shown in Figure 1.
Fig. 3 is that expression is as the front view of the antenna that checks object with the structure example of electric wire wire harness.
Fig. 4 is the synoptic diagram of the connection status of the circuit component of influence each one in one's power when applying test with voltage to Fig. 1 and antenna shown in Figure 3 with the electric wire wire harness.
Fig. 5 be applied test with soon antenna after the DC voltage with the circuit diagram of the equivalent electrical circuit of electric wire wire harness.
Fig. 6 has applied the circuit diagram of testing with use the equivalent electrical circuit of electric wire wire harness after the DC voltage again through the antenna after the sufficient time.
Fig. 7 is high voltage test with the waveform synoptic diagram of the voltage waveform under the situation of not free constant circuit in the anchor clamps.
Fig. 8 is high voltage test with the waveform synoptic diagram of the voltage waveform under the situation that has time constant circuit in the anchor clamps.
Fig. 9 comes across the waveform synoptic diagram that antenna is used the voltage waveform example between the electric wire wire harness interior capacitor terminal under the actual test mode.
The wiring schematic diagram of the connection status when Figure 10 is to use the high voltage test device of variation that antenna is tested with the electric wire wire harness.
Symbol description
10 antennas electric wire wire harness
11 concentric cable
The 11a heart yearn
The 11b shielded conductor
12,13 wire harness side-connectors
14 capacitors
20,20B high voltage test anchor clamps (high voltage test device)
21,22 tester side-connectors
23 anchor clamps circuit
The 23a time constant circuit
Circuit is eliminated in the 23b surge
24,25 terminals
30 insulation resistances/Hi-pot Tester
31,32 output electrodes
40 antennas electric wire wire harness
41,43 concentric cable
42,44,45 wire harness side-connectors
46 capacitors
51,52,53 tester side-connectors
P1, P3 heart yearn short circuit portion
P2, P4 shielding line short circuit portion
X radio unit
The Y antennafier
Embodiment
Below, with reference to each accompanying drawing, the embodiment relevant to high voltage test device of the present invention describes.
The concrete example of the connection status when Fig. 1 represents to use the high voltage test device of present embodiment that antenna is tested with the electric wire wire harness.In addition, in the present embodiment, as typical example, be supposed will be as shown in Figure 3 antenna with the conduct a survey situation of object of electric wire wire harness 10 usefulness.
As shown in Figure 3, this antenna is used to connect between predetermined radio unit (input of vehicular radio receiver) X and antennafier (amplifier that will amplify from the high-frequency signal of the car antenna) Y with electric wire wire harness 10.In addition, as shown in Figure 3, it comprises the concentric cable (1.5C-2V) 11 of the length (for example 1.6m) that has to a certain degree and the wire harness side- connector 12,13 that is connected with an end 11A and the other end 11B of this concentric cable respectively.And, be built-in with capacitor 14 in the inboard of wire harness side-connector 12.
Particularly, wire harness side-connector 12 is the JASO plugs (plug) that meet Japan Automobile Standard Organization (JASO).In addition, wire harness side-connector 13 is coaxial with high frequency connectors (HFC).
Be built in capacitors 14 in the wire harness side-connector 12 and be for the antenna system that is connected with concentric cable 11 (Fig. 3 for example, radio unit X and antennafier Y are equivalent to this antenna system) signal source mate the capacitor of (matching), play coupling with the effect of compensation condenser.That is, as shown in Figure 3, an end of capacitor 14 is connected with heart yearn 11a at an end 11A of concentric cable 11, and the other end of capacitor 14 is connected with the electrode 12a at the center of wire harness side-connector 12.Adopt this structure, make antenna possess with electric wire wire harness 10 and be used for the function of mating with the signal source of antenna system.
In addition, the electrode 12b of the periphery of wire harness side-connector 12 is connected with shielded conductor 11b at an end 11A of concentric cable 11.The electrode 13a at the center of wire harness side-connector 13 is connected with heart yearn 11a at the other end 11B of concentric cable 11, and the electrode 13b of periphery is connected with shielded conductor 11b at the other end 11B of concentric cable 11.
When antenna shown in Figure 3 is tested as the inspection object with electric wire wire harness 10, as shown in Figure 1, it is connected with anchor clamps (high voltage test device) 20 with high voltage test.Namely, because concentric cable 11 possesses pliability, so, antenna is bent into U word shape with electric wire wire harness 10, make the distolateral wire harness side-connector (plug) 12 of one carry out mechanical connection with tester side-connector (socket) 21 and be electrically connected, and make another distolateral wire harness side-connector (female) 13 carry out mechanical connection with tester side-connector (male) 22 and be electrically connected.
High voltage test shown in Figure 1 has tester side- connector 21,22 and anchor clamps circuit 23 with anchor clamps 20.Tester side-connector 21 and tester side-connector 22 are disposed at the position of mutual vicinity.In addition, the central side electrode 21a of tester side-connector 21 is connected with the central side electrode 22a of tester side-connector 22 at the heart yearn short circuit P1 of portion, and the outer circumferential side electrode 21b of tester side-connector 21 is connected with the outer circumferential side electrode 22b of tester side-connector 22 at the shielding line short circuit P2 of portion.
The heart yearn short circuit P1 of portion is connected with terminal 24 via anchor clamps circuit 23, and the shielding line short circuit P2 of portion is connected with terminal 25 via anchor clamps circuit 23.The terminal 24 and 25 of anchor clamps circuit 23 is connected with the output electrode 31 and 32 of insulation resistance/Hi-pot Tester 30 respectively.
Insulation resistance/Hi-pot Tester 30 has the function of the megger test of having used dc high voltage and has used the function of the proof voltage test of ac high voltage.That is, can under the state that has applied dc high voltage (for example 1000V) between the output electrode 31,32, measure the insulation resistance that checks object.In addition, can under the state that has applied low-frequency ac (for example 50Hz) high voltage (for example 1000V) between the output electrode 31,32, identify the inspection object whether insulation breakdown takes place.
Fig. 2 represents the equivalent electrical circuit of the major part of circuit shown in Figure 1.As shown in Figure 2, high voltage test has time constant circuit 23a and surge elimination circuit 23b with the anchor clamps circuit 23 of anchor clamps 20.
Time constant circuit 23a arranges for rising and the decline that slows down the waveform when switching the DC voltage conducting that insulation resistance/Hi-pot Tester 30 exports/cut-out.In addition, in structure example shown in Figure 2, time constant circuit has two resistors and three capacitors, but also can only constitute time constant circuit 23a by a resistor and a capacitor.
Surge is eliminated circuit 23b and is arranged in order to protect total system.That is, former because of certain thereby temporarily applied under the situation of unusual high voltage (surge voltage), for the circuit each several part is not destroyed, surge is eliminated circuit 23b surge voltage is eliminated.In this structure example, two diodes oppositely mutual by polarity and that be connected in series constitute surge and eliminate circuit 23b.In addition, surge is eliminated circuit 23b and is used for unexpected protection, therefore also can omit.
The supposition connection status of the main circuit element of the each several part that when Fig. 4 represents to apply test with voltage to Fig. 1 and antenna shown in Figure 3 with electric wire wire harness 10 antenna is impacted with electric wire wire harness 10.The entity of each circuit component shown in Figure 4 is as follows.
C1: the electrostatic capacitance that is equivalent to wire harness side-connector 12 interior capacitor 14
R: the insulation resistance between heart yearn 11a and the shielded conductor 11b
C2: the stray capacitance between heart yearn 11a and the shielded conductor 11b
L: be present in the inductance composition among heart yearn 11a etc.
Therefore, about the equivalent electrical circuit of antenna with electric wire wire harness 10, as shown in Figure 2, comprise C1, C2, each composition of L.
As shown in Figure 1, the central side electrode 21a by making tester side-connector 21 at the heart yearn short circuit P1 of portion and the central side electrode 22a short circuit of tester side-connector 22 are electrically connected between an end of capacitor 14 and the other end.Therefore, under stable state, the voltage between capacitor 14 two ends is 0V.But the output from insulation resistance/Hi-pot Tester 30 when test applies under the situation of DC voltage, when conducting/cut-out is switched, also can produce high-tension rising and decline.Therefore, C1 shown in Figure 2, C2, each composition of L influence occurred for the alternating component of this moment, might high voltage occur between the two ends of capacitor 14.Particularly under the situation that concentric cable 11 length are long, exist the influence of C1, C2, each composition of L to become big possibility.
Fig. 5 represented to apply test with soon antenna after the DC voltage with the equivalent electrical circuit of electric wire wire harness 10.That is, soon, because the effect of inductance composition L, (for example 8ns) produces back electromotive force at short notice after having applied DC voltage, under its influence, capacitor 14(C1) two ends the voltage Vc1 that represents with following formula has appearred.
The Vc1=(impressed voltage) * C2/(C1+C2) ... (1)
In addition, Fig. 6 has represented to apply the equivalent electrical circuit of testing with use electric wire wire harness 10 after the DC voltage again through the antenna after the sufficient time.That is because after applying DC voltage through after the adequate time, the influence of the back electromotive force of inductance composition L disappears, so, capacitor 14(C1) two ends become by the short circuit state capacitor 14(C1 at the heart yearn short circuit P1 of portion) two ends become equipotential.
That is to say, use high voltage test with anchor clamps 20 the heart yearn short circuit P1 of portion with the situation of antenna with an end of electric wire wire harness 10 and other end short circuit under, also capacitor 14 temporarily is applied with the voltage of above-mentioned (1) formula.Under the situation of this voltage swing above withstand voltage (for example 50V) of capacitor 14, capacitor 14 may be breakdown.
Fig. 7 represents the voltage waveform of high voltage test under the situation of anchor clamps 20 not free constant circuit 23a.That is voltage Vc1 appears in two ends when putting on input voltage vin (voltage between A point-D point) as shown in Figure 7 the waveform of antenna with electric wire wire harness 10 and take place like that sharply to change, during transition state in the T1, capacitor 14(C1).In example shown in Figure 7, when giving variation with 5V as input voltage vin, observe the voltage Vc1 of the amplitude that is 3.8V to the maximum.Therefore, if under the situation that 1000V is applied as input voltage vin, the high voltage of 760V will be applied to capacitor 14(C1) two ends, insulation breakdowns take place in capacitor 14.
On the other hand, Fig. 8 represents that high voltage test has the waveform of the voltage under the situation of time constant circuit 23a with anchor clamps 20.That is, be applied to the input voltage vin (voltage between A point-D point) of antenna usefulness electric wire wire harness 10 under the influence of time constant circuit 23a, waveform as shown in Figure 8, it is mild that its rising and decline become.Its result is, even in during transition state, capacitor 14(C1) the voltage Vc1 that occurs of two ends also be varied down to the degree of noise level.
Fig. 9 represents to come across under the actual test mode antenna with electric wire wire harness 10 interior capacitor 14(C1) terminal between the voltage waveform example.In example shown in Figure 9, show the capacitor 14(C1 under the transition state when applying direct current 500V as above-mentioned input voltage vin) the voltage Vc1 that occurs of two ends.In this embodiment, because the amplitude maximum of voltage Vc1 is 4.68V, so, if it is consider common withstand voltage (for example 50V) of capacitor 14, then no problem fully.
That is to say, when antenna is used the megger test of electric wire wire harness 10, even under the situation that the dc high voltage (for example 1000V) that insulation resistance/Hi-pot Tester 30 is exported sharply switches on or off, also can prevent under transition state, surpassing withstand voltage high voltage and be applied between the terminal of capacitor 14 by at high voltage test set-up time constant circuit 23a in the anchor clamps 20.In addition, perhaps the same with concentric cable 11 length under the mild situation of change in voltage that insulation resistance/Hi-pot Tester 30 is exported, under the less situation of the influence of inductance composition L, may not go wrong even without time constant circuit 23a yet.
(variation)
Connection status when Figure 10 represents to use the high voltage test device of variation that antenna is tested with electric wire wire harness 40.In example shown in Figure 10, have two concentric cable 41,43 and three wire harness side- connectors 42,44,45 with the antenna of the object that conducts a survey with electric wire wire harness 40.That is, an end of concentric cable 41 and an end of concentric cable 43 are connected with the wire harness side-connector 45 that shares, and the other end of concentric cable 41 is connected with wire harness side-connector 42, and the other end of concentric cable 43 is connected with wire harness side-connector 44.
Wire harness side-connector 42 is the JASO plug, and wire harness side-connector 45 is high frequency connectors (HFC), and wire harness side-connector 44 is the JASO Miniature plug.Be built-in with capacitor 46 in wire harness side-connector 42 inside.
High voltage test shown in Figure 10 only is the structure that just can check with the integral body of electric wire wire harness 40 antenna by test once with anchor clamps (high voltage test device) 20B.That is, high voltage test has tester side- connector 51,52 and 53 with anchor clamps 20B.In addition, tester side-connector 51, tester side-connector 52 and tester side-connector 53 are disposed at the position of mutual vicinity.As shown in figure 10, tester side-connector 51 is connected with wire harness side-connector 42, and tester side-connector 52 is connected with wire harness side-connector 44, and tester side-connector 53 is connected with wire harness side-connector 45.
In addition, at the heart yearn short circuit P3 of portion, the central side electrode of the central side electrode of tester side-connector 51, the central side electrode of tester side-connector 52, tester side-connector 53 shares and is electrically connected.In addition, at the shielding line short circuit P4 of portion, the outer circumferential side electrode of the outer circumferential side electrode of tester side-connector 51, the outer circumferential side electrode of tester side-connector 52, tester side-connector 53 shares and is electrically connected.
Therefore, under connection status as shown in figure 10, as long as the output terminal output voltage from insulation resistance/Hi-pot Tester 30, just can apply voltage to the integral body of concentric cable 41 and the integral body of concentric cable 43, only just can finish the test that antenna is used the integral body of electric wire wire harness 40 by one-stop operation.
As mentioned above, high voltage test device of the present invention can be applied to the situation of antenna cable that for example is equipped on vehicle etc. being carried out megger test or voltage-withstand test, particularly be built-in with under the situation of capacitor as the cable that checks object, also can only namely finish the test of whole cable by one-stop operation, help the improvement of operating efficiency.And, because as long as connector coupled together just can begin to test, so, can prevent from because of the attended operation of mistake capacitor being applied excessive voltage condition.In addition, by the set-up time constant circuit, also can prevent under temporary transient transition state, capacitor being applied the situation of excessive voltage.
In addition, describe the present invention in detail with reference to specific embodiment, but can carry out various changes and correction under the prerequisite that does not deviate from the spirit and scope of the present invention, this is self-evident to those skilled in the art.
In addition, the Japanese patent application (Japanese Patent Application 2010-246474) that the application proposed based on November 2nd, 2010, at this, its content is introduced into as reference.
Industrial applicability
According to the present invention, even under the situation that the concentric cable that is built-in with capacitor is tested, also can under the prerequisite of not destroying capacitor, carry out the test of whole cable with shirtsleeve operation.
Claims (4)
1. high voltage test device, described high voltage test device serves as to check object with the concentric cable with center conductor and shielded conductor, by between the center conductor of described concentric cable and shielded conductor, applying high voltage, carry out the test of relevant electric insulation state, described shielded conductor surrounds around the described center conductor, between described shielded conductor and described center conductor, clips predetermined insulating material, it is characterized in that
Described high voltage test device has cable connecting part, and described cable connecting part is connected two output electrodes of the tester of output HIGH voltage respectively with center conductor and shielded conductor as the described concentric cable that checks object,
Described cable connecting part also has: with the heart yearn short circuit portion of electric short circuit between an end of the length direction of the center conductor of described concentric cable and the other end; And with the shielding line short circuit portion of electric short circuit between an end of the length direction of the shielded conductor of described concentric cable and the other end.
2. high voltage test device according to claim 1 is characterized in that,
Described high voltage test device also has time constant circuit, and described time constant circuit is connected between the input of the output of described tester and described cable connecting part, and comprises at least one resistor and at least one capacitor.
3. high voltage test device according to claim 2 is characterized in that,
Described time constant circuit has the surge that absorbs abnormally high-voltage and eliminates circuit.
4. high voltage test device according to claim 1 is characterized in that,
Described cable connecting part has plural coaxial connector, and described coaxial connector is used for respectively being connected with being arranged at as an end of the length direction of the described concentric cable that checks object and two connectors of the other end.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010246474A JP5795470B2 (en) | 2010-11-02 | 2010-11-02 | High voltage test equipment |
| JP2010-246474 | 2010-11-02 | ||
| PCT/JP2011/075303 WO2012060414A1 (en) | 2010-11-02 | 2011-11-02 | High voltage testing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103201643A true CN103201643A (en) | 2013-07-10 |
| CN103201643B CN103201643B (en) | 2015-04-22 |
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ID=46024527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180052839.4A Active CN103201643B (en) | 2010-11-02 | 2011-11-02 | High voltage testing device |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20130241571A1 (en) |
| EP (1) | EP2642306B1 (en) |
| JP (1) | JP5795470B2 (en) |
| CN (1) | CN103201643B (en) |
| WO (1) | WO2012060414A1 (en) |
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| CN112772006A (en) * | 2018-09-27 | 2021-05-07 | Abb电网瑞士股份公司 | Suppressor module and shielding device for high-voltage equipment |
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| JP2015002554A (en) * | 2013-06-18 | 2015-01-05 | 船井電機株式会社 | Wired communication device and wired communication method |
| DE102013014476A1 (en) * | 2013-09-02 | 2015-03-05 | Media Broadcast Gmbh | Transmitting antenna system with a monitoring of an electrical conductivity property and built-in part with a coupling of a resistance measuring device |
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| CN110161340A (en) * | 2019-06-04 | 2019-08-23 | 格力电器（武汉）有限公司 | Discharge device and test system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103201643B (en) | 2015-04-22 |
| US20130241571A1 (en) | 2013-09-19 |
| JP2012098174A (en) | 2012-05-24 |
| JP5795470B2 (en) | 2015-10-14 |
| EP2642306B1 (en) | 2019-05-22 |
| EP2642306A4 (en) | 2018-04-11 |
| EP2642306A1 (en) | 2013-09-25 |
| WO2012060414A1 (en) | 2012-05-10 |
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